Nosocomial infections in patients admitted in medical intensive care units in a tertiary health center in Western part of India and their hematological correlation

Author:

Roychoudhury Arnav Kr.1,Maheshwari Ujwala2,Bansal Nidhi3,Padhye Amruta2

Affiliation:

1. Department of Pathology, AIMSR, Bathinda, Punjab, India

2. Department of Pathology, MGM Medical College, Navi Mumbai, Maharashtra, India

3. Department of Immunohematology & Blood Transfusion (IHBT), AIMSR, Bathinda, Punjab, India

Abstract

Background and Aim: Acquired infections (AIs) in medical intensive care units (MICUs) have become serious threats with increasing mortality and morbidity more so in the developing countries. The most common reason is lack of efficient infection control protocols. The national nosocomial infections surveillance system defines a nosocomial infection as a localized or systemic condition that results from adverse reaction to the presence of infectious agents or their toxins that were not present or incubating at the time of admission to the hospital. Critically ill patients are at increased risk of acquiring nosocomial infections because of their lower immune status. These infections being opportunistic, microbes of low virulence cause also cause disease in hospital patients whose immune systems are impaired. This study was conducted to study the association of leukocytosis in relation to nosocomial infections in MICU. Methods: A retrospective study was conducted at the MICU under the Department of Anesthesiology in collaboration with the Department of Microbiology and Department of Pathology of Mahatma Gandhi Medical College and Hospital, Navi Mumbai over six months. All the patients who were admitted in MICU and stayed for more than 48 hours were included in the present study. Results: A total of 805 patients were admitted in the MICU from January 1st to June 30th, 2017, for a period of 6 months. Out of 805 cases, 27 patients developed nosocomial infections amounting to 3.3% with male-to-female ratio of 2.8:1. The age of the patient ranged from 15 to 85 years with the mean age of 50 years. Male predominance was seen with 74% cases with mean age of 48.5 years. Maximum cases were seen in the geriatric age group mainly 6th to 7th decade comprising of 40.7% of all cases. In our study, bloodstream infection was the most common finding constituting 100% of the cases, followed by urinary tract infections. All the cases of nosocomial infections showed polymorphonuclear leukocytosis with shift to left. In our study, diabetes mellitus followed by hypertension and chronic kidney disease was the major contributory comorbidities comprising of 29.6%, 29.6%, and 22.2%, respectively. In our study, the invasive devices contributed to the overall outcome of the patients. Urinary catheters (all cases) were the most prevalent invasive device followed closely by Ryle’s tube (90%) and endotracheal tube (60%). Conclusions: Intensive care units (ICUs) comprise of less than 10% of the total hospital beds but contribute >20% of all the nosocomial infections acquired in the hospital. World Health Organization (WHO) estimates the burden of nosocomial infections in hospitalized patients to be 7–12% globally, in contrast to the figures from India being alarmingly high varying from 11–83%.

Publisher

Medknow

Reference10 articles.

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3. Challenge of intensive care unit-acquired infections and Acinetobacter baumannii in developing countries;Ulu-Kilic;OA Crit Care,2013

4. Prevention of Hospital Acquired Infections. 2nd ed A PracticalGuide,2002

5. A retrospective study of nosocomial infections in patients admitted in M.I.C.U;Pratham;Indian J Pharm Pract,2011

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